.download-wapper img{
    margin: 50px;
    border-radius: 10px;
}
.download-wapper .download-app{
    display: block;
    width: 75%;
    margin: 0px auto;
    background-color: greenyellow;
    height: 40px;
    border-radius: 10px;
    text-align: center;
    line-height: 40px;
}